Question 97 (1 point) A 70-year old woman on a tea and toast diet presents with

Question

Question 97 (1 point) A 70-year old woman on a tea and toast diet presents with bleeding gums, petechiae, and easy brusing, and pain in her arms and legs. She states that she almost never eat fruits and vegetables. She is diagnosed with Vitamin C deficiency. Which of the following is the basis of the clinical abnormalities that occur as a result of lack of Vitamin C. O A) Defective hydroxylation of proline and lysine B) Destruction of endothelial cells O C) Increased proliferation of collagen and fibrous tissue OD) Increased intestinal absorption of iran E) Defective calcification of osteoid matrix Save

Explanation / Answer

question 97- which of the following is the basis of clinical abnormalities that occur as a result of lack of Vit C?

Answer- A) defective hydroxylation of proline and lysine - hydroxylation is mediated by Vit C which acts as a cofactor.

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The epithelioid cells and giant cells of this form of chronic inflammation are derived from which of the following?

Answer- D) monocytes and macrophages - the center is formed by macrophages surrounded by some lymphocytes and plasma cells

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A 3-year old with a history of repeated infection is found to have elevated chloride in a sweat test. An additional expected finding is

Answer- E) Steatorrhoea - fat in the stool and chloride in sweat test are found in cystic fibrosis as a classic symptoms

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